EFFECTS OF A PREPAID NONMONETARY INCENTIVE ON RESPONSE RATES AND RESPONSE QUALITY IN A FACE-TO-FACE SURVEY

We conducted a randomized experiment on a face-to-face interviewsurvey in order to test the effects on response rates of a prepaidnonmonetary incentive. Results showed a statistically significantincrease in response rates, mostly through reduction in refusalrates, in the half sample that received the incentive (a gift-typeballpoint pen) as compared with a no incentive control group.The effect appears to be due to greater cooperation from incentiverecipients at the initial visit by an interviewer. Unexpectedly,the incentive group also showed a significantly higher rateof sample ineligibility, possibly due to easier identificationof vacant residences or nonexistent addresses. In addition,evidence suggests greater response completeness among respondingincentive recipients early in the interview, with no evidenceof increased measurement error due to the incentive.     

The Concept of Consciousness4 The Reflective Meaning

In this article, which is fourth in a series of six articles, I address the fourth concept of consciousness that the Oxford English Dictionary ("the OED") defines in its six main entries under the word consciousness. I first introduce this fourth concept, the concept of consciousness₄. by (a) identifying the previous three OED concepts of consciousness, which I have already discussed in this series of articles, and (b) by indicating how that to which we make reference, respectively, by means of those three concepts is related to the referents of the concept of consciousness₄. I then address the latter concept more directly by pursuing for the remainder of the article where the OED's fourm entry leads. Among other things, I am led to consider two competing accounts of consciousness₄ that figure prominently in the OED entry, namely the intrinsic, self-intimational account of William Hamilton and the inner-eye, perceptionlike account of John Locke. Both kinds of account are very much with us today.     

Markov Properties for Acyclic Directed Mixed Graphs

We consider acyclic directed mixed graphs, in which directed edges ( x → y ) and bi-directed edges ( x ↔ y ) may occur. A simple extension of Pearl's d -separation criterion, called m -separation, is applied to these graphs. We introduce a local Markov property which is equivalent to the global property resulting from the m -separation criterion for arbitrary distributions.     

The Concept of Consciousness5: The Unitive Meaning

This is the fifth of a series of six articles examining respectively the six concepts of consciousness identified in the main entries of the Oxford English Dictionary under the word. I call the concept of consciousness₅ the unitive meaning because it is said to refer to the totality of mental-occurrence instances that constitute a person's conscious being. The present article consists mainly of an effort to answer the question of which totality of mental-occurrence instances it is to which the fifth concept refers. Four possible answers are considered, and the fourth, derived form Locke, is found to capture best the dictionary's meaning. Accordingly, consciousness5 is a certain subjectively determined unity of mental-occurrence instances mat is further specified, of course, in the article. However, I also consider, finally, that the compilers of the dictionary may have had something more objective in mind as well, another meaning toward which the word is tending if it has not already arrived mere. This further sense may amount to an identification of consciousness with those components of James's stream that he described as "the very core and nucleus of our self as we know it, the very sanctuary of our life."     

USING DUAL FRAME DESIGNS TO REDUCE NONRESPONSE IN TELEPHONE SURVEYS

This article reports on the results of a series of experimentsdesigned to improve response rates for telephone surveys. Inthree surveys telephone households were selected using bothstandard random digit dialing (RDD) techniques and lists oftelephone numbers purchased from a commercial firm. In the RDDportions of the samples "cold contact" interviewing methodswere used; in the list frame portions advance letters were mailed,and the listed household name was used in the introduction.Experiments were designed to test the effects on response ratesof the advance letters and use of the listed household nameas a means of establishing rapport. The advance letters increasedresponse rates, but no difference could be attributed to theuse of names. The mixture of RDD and list sampling techniquesis also used to evaluate the effects of relative response rateson substantive findings. The cost consequences of these dualframe designs are assessed along a number of dimensions, andthe cost and error components of these designs are discussed.     

RACE-OF-INTERVIEWER EFFECTS IN A PREELECTION POLL VIRGINIA 1989

All published preelection surveys of the 1989 Virginia gubernatorialcontest overestimated the vote share of the black candidateand eventual victor, Douglas Wilder. We offer a "social desirability"interpretation of the polls' inaccuracies and hypothesize thatclaiming support for Wilder was the socially desirable responsefor some whites, especially when the interviewer was black.We show a race-of-interviewer effect on the vote intention ofwhite respondents of 8–11 percentage points in a preelectionsurvey of Virginia voters. The effects were greatest among whiteDemocrats and among whites who were more uncertain of theirvote intention. We discuss the implications of these findingsfor race-of-interviewer research and for improving the accuracyof preelection forecasts in contests with black and white opposingcandidates.     

Authority Systems

This is the second of the Paul F. Lazarsfeld Lectures, whichwill be presented annually under the auspices of the Centerfor the Social Sciences of Columbia University, heir to theBureau of Applied Social Research. James S. Coleman's paper,delivered on March 7, 1980, follows upon the first Lecture,given by Hans Zeisel in Philadelphia under the auspices of theCenter for Research on the Acts of Man. From this time forward,the Public Opinion Quarterly plans to ensure continuity of publicationof the annual Lectures in the journal which Paul Lazarsfelddid so much to sustain.     

EMPIRICAL UTILITY FUNCTIONS AND RANDOM DEVICES: AN EXPERIMENT

The primary purpose of the present experiment was to examine the effects on the empirical derivation of executive's utility functions caused by the use of random device analogues. The results indicate that utility functions obtained using a random device analogue imply more risk aversion than when these functions are determined by simulating actual decision situations. Furthermore, there is also evidence that the bias is directly related to the monetary amounts involved.